scholarly journals Work in Progress: Implementing an Open-Ended Laboratory Experience in the Unit Operations Laboratory with an Alternative CSTR Reaction

2020 ◽  
Author(s):  
Erick Vasquez ◽  
Zachary West ◽  
Matthew DeWitt ◽  
Michael Elsass ◽  
Donald Comfort
1976 ◽  
Vol 32 ◽  
pp. 109-116 ◽  
Author(s):  
S. Vauclair

This paper gives the first results of a work in progress, in collaboration with G. Michaud and G. Vauclair. It is a first attempt to compute the effects of meridional circulation and turbulence on diffusion processes in stellar envelopes. Computations have been made for a 2 Mʘstar, which lies in the Am - δ Scuti region of the HR diagram.Let us recall that in Am stars diffusion cannot occur between the two outer convection zones, contrary to what was assumed by Watson (1970, 1971) and Smith (1971), since they are linked by overshooting (Latour, 1972; Toomre et al., 1975). But diffusion may occur at the bottom of the second convection zone. According to Vauclair et al. (1974), the second convection zone, due to He II ionization, disappears after a time equal to the helium diffusion time, and then diffusion may happen at the bottom of the first convection zone, so that the arguments by Watson and Smith are preserved.


1989 ◽  
Vol 53 (8) ◽  
pp. 495-495
Author(s):  
GR Huebner ◽  
RL Norman ◽  
JS Mattson

2007 ◽  
Vol 38 (3) ◽  
pp. 1-92
Author(s):  
CHRISTINE KILGORE
Keyword(s):  

2007 ◽  
Vol 40 (7) ◽  
pp. 16-17
Author(s):  
CHRISTINE KILGORE
Keyword(s):  

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